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GLONASS System As a Tool for Space Weather Monitoring
GLONASS System as a tool for space weather monitoring V.V. Alpatov, S.N. Karutin, А.Yu. Repin Institute of Applied Geophysics, Roshydromet TSNIIMASH, Roscosmos BAKU-2018 PLAN OF PRESENTATION General information about GLONASS Goals Organization and Management Technical information about GLONASS Space Weather Effects On Space Systems On Ground based Systems Possible Opportunities of GLONASS for Monitoring Space Weather Effects Russian Monitoring System for Monitoring Space Weather Effects with Use Opportunities of GLONASS 2 GENERAL INFORMATION ABOUT GLONASS NATIONAL SATELLITE NAVIGATION POLICY AND ORGANIZATION Presidential Decree of May 17, 2007 No. 638 On Use of GLONASS (Global Navigation Satellite System) for the Benefit of Social and Economic Development of the Russian Federation Federal Program on GLONASS Sustainment, Development and Use for 2012-2020 – planning and budgeting instrument for GLONASS development and use Budget planning for the forthcoming decade – up to 2030 GLONASS Program governance: Roscosmos State Space Corporation Government Contracting Authority – Program Coordinator Government Contracting Authorities Program Scientific and Coordination Board GLONASS Program Goals: Improving GLONASS performance – its accuracy and integrity Ensuring positioning, navigation and timing solutions in restricted visibility of satellites, interference and jamming conditions Enhancing current application efficiency and broadening application domains 3 CHARACTERISTICS IMPROVEMENT PLAN Accuracy Improvement by means of: . Ground Segment -
AVL Systems for Bus Transit
T R A N S I T C O O P E R A T I V E R E S E A R C H P R O G R A M SPONSORED BY The Federal Transit Administration TCRP Synthesis 24 AVL Systems for Bus Transit A Synthesis of Transit Practice Transportation Research Board National Research Council TCRP OVERSIGHT AND PROJECT TRANSPORTATION RESEARCH BOARD EXECUTIVE COMMITTEE 1997 SELECTION COMMITTEE CHAIRMAN OFFICERS MICHAEL S. TOWNES Peninsula Transportation District Chair: DAVID N. WORMLEY, Dean of Engineering, Pennsylvania State University Commission Vice Chair: SHARON D. BANKS, General Manager, AC Transit Executive Director: ROBERT E. SKINNER, JR., Transportation Research Board, National Research Council MEMBERS SHARON D. BANKS MEMBERS AC Transit LEE BARNES BRIAN J. L. BERRY, Lloyd Viel Berkner Regental Professor, Bruton Center for Development Studies, Barwood, Inc University of Texas at Dallas GERALD L. BLAIR LILLIAN C. BORRONE, Director, Port Department, The Port Authority of New York and New Jersey (Past Indiana County Transit Authority Chair, 1995) SHIRLEY A. DELIBERO DAVID BURWELL, President, Rails-to-Trails Conservancy New Jersey Transit Corporation E. DEAN CARLSON, Secretary, Kansas Department of Transportation ROD J. DIRIDON JAMES N. DENN, Commissioner, Minnesota Department of Transportation International Institute for Surface JOHN W. FISHER, Director, ATLSS Engineering Research Center, Lehigh University Transportation Policy Study DENNIS J. FITZGERALD, Executive Director, Capital District Transportation Authority SANDRA DRAGGOO DAVID R. GOODE, Chairman, President, and CEO, Norfolk Southern Corporation CATA DELON HAMPTON, Chairman & CEO, Delon Hampton & Associates LOUIS J. GAMBACCINI LESTER A. HOEL, Hamilton Professor, University of Virginia. Department of Civil Engineering SEPTA JAMES L. -
The Navy Navigation Satellite System (Transit)
ROBERT J. DANCHIK THE NAVY NAVIGATION SATELLITE SYSTEM (TRANSIT) This article provides an update on the status of the Navy Navigation Satellite System (TRANSIT). Some insights are provided on the evolution of the system into its current configuration, as well as a discussion of future plans. BACKGROUND sign goal was never achieved for long in those early In 1958, research scientists at APL solved the orbit days because the satellites had short operational life of the first Russian satellite, Sputnik-I, by analysis of times. The failures largely resulted from inadequate the observed Doppler shift of its transmitted signal. component quality and the large number of wiring in This led immediately to the concept of satellite navi terconnections. However, after OSCAR 2 10 and OS gation and the development of the U.S. Navy Navi CAR 12 were launched in 1966 and 1967, respectively, gation Satellite System (TRANSIT) by APL, under the enough data on the failure mechanisms became avail sponsorship of the Navy's Special Projects Office, to able to APL to achieve the desired advances in reli provide position fixes for the Fleet Ballistic Missile ability. The integrated circuit introduced in OSCAR Weapon System submarines. (The articles in Ref. 1, 10 significantly extended the satellite lifetime by im a previous issue of the fohns Hopkins APL Techni proving component reliability and reducing the num cal Digest devoted to TRANSIT, give the principles ber of interconnections. Subsequently, the last major of operation and early history of the system.) Now, design change made to the solar cell interconnections, 26 years after its conception, the system is mature. -
ABAS), Satellite-Based Augmentation System (SBAS), Or Ground-Based Augmentation System (GBAS
Current Status and Future Navigation Requirements for Mexico City New Airport New Mexico City Airport in figures: • 120 million passengers per year; • 1.2 million tons of shipping cargo per year; • 4,430 Ha. (6 times bigger tan the current airport); • 6 runways operating simultaneously; • 1st airport outside Europe with a neutral carbon footprint; • Largest airport in Latin America; • 11.3 billion USD investment (aprox.); • Operational in 2020 (expected). “State-of-the-art navigation systems are as important –or more- than having world class civil engineering and a stunning arquitecture” Air Navigation Systems: A. In-land deployed systems - Are the most common, based on ground stations emitting radiofrequency signals received by on-board equipments to calculate flight position. B. Satellite navigation systems – First stablished by U.S. in 1959 called TRANSIT (by the time Russia developed TSIKADA); in 1967 was open to civil navigation; 1973 GPS was developed by U.S., then GLONASS, then GALILEO. C. Inertial navigation systems – Autonomous navigation systems based on inertial forces, providing constant information on the position of the flight and parameters of speed and direction (e.g. when flying above the ocean and there are no ground segments to provide support). Requirements for performance of Navigation Systems: According to the International Civil Aviation Organization (ICAO) there are four main requirements: • The accuracy means the level of concordance between the estimated position of an aircraft and its real position. • The availability is the portion of time during which the system complies with the performance requirements under certain conditions. • The integrity is the function of a system that warns the users in an opportune way when the system should not be used. -
Classification of Geosynchronous Objects
esoc European Space Operations Centre Robert-Bosch-Strasse 5 D-64293 Darmstadt Germany T +49 (0)6151 900 www.esa.int CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS Produced with the DISCOS Database Prepared by ESA’s Space Debris Office Reference GEN-DB-LOG-00211-OPS-GR Issue 20 Revision 0 Date of Issue 28 May 2018 Status Issued Document Type Technical Note Distribution ESA UNCLASSIFIED - Limited Distribution European Space Agency Agence spatiale europeenne´ Abstract This is a status report on geosynchronous objects as of 1 January 2018. Based on orbital data in ESA’s DISCOS database and on orbital data provided by KIAM the situation near the geostationary ring is analysed. From 1523 objects for which orbital data are available (of which 0 are outdated, i.e. the last available state dates back to 180 or more days before the reference date), 519 are actively controlled, 795 are drifting above, below or through GEO, 189 are in a libration orbit and 19 are in a highly inclined orbit. For 1 object the status could not be determined. Furthermore, there are 59 uncontrolled objects without orbital data (of which 54 have not been cata- logued). Thus the total number of known objects in the geostationary region is 1582. If you detect any error or if you have any comment or question please contact: Stijn Lemmens European Space Agency European Space Operations Center Space Debris Office (OPS-GR) Robert-Bosch-Str. 5 64293 Darmstadt, Germany Tel.: +49-6151-902634 E-mail: [email protected] Page 1 / 187 European Space Agency CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS Agence spatiale europeenne´ Date 28 May 2018 Issue 20 Rev 0 Table of contents 1 Introduction 3 2 Sources 4 2.1 USSTRATCOM Two-Line Elements (TLEs) . -
PRFP-11) & Interconnectivity Workshop 26-30 November 2019, Apia, SAMOA
11th APT Policy and Regulation Forum for Pacific (PRFP-11) & Interconnectivity Workshop 26-30 November 2019, Apia, SAMOA Workshop Topic ENABLERS FOR A BETTER CONNECTED PACIFIC - New Satellite Technologies and Services (MSS, ESIM and LEOs) Dr Bob Horton Consultant Satellite Industry ENABLERS FOR A BETTER CONNECTED PACIFIC - New Satellite Technologies and Services (MSS and LEOs) CONTENTS • Examples of progress : MSS, ESIM – Inmarsat LEOs – OneWeb • Pacific Needs - understanding and participating in the regional/global environment - the Pacific : a “Collection of Islands” or an “Island Collective”? - opportunities overdue in APAC Inmarsat use of spectrum L band Ka band User links: 1626.5-1660.5 MHz ↑, 1525-1559 Feeder link ↑ : 27.5 – 30.0 GHz MHz↓ Feeder link↓ : 17.7 – 20.2 GHz Extended L-band: User link ↑ : 29.0 – 30.0 GHz User link↓ : 19.2 – 20.2 GHz User links: 1668-1675 MHz ↑, 1518 MHz-1525 MHz ↓ Used by Inmarsat Global Express satellites S band Used by Inmarsat-4 satellites and Alphasat Feeder link ↑ : 27.5 – 29.5 GHz Feeder link↓ : 17.7 – 19.7 GHz User link ↑ 1980-2010MHz Q/V band User link↓ : 2170-2200MHz C band 37.5-42.5 GHz ↓ Used by Europasat Feeder links for L-band satellites operate in 47.2-50.2 GHz + 50.4-51.4 GHz ↑ the bands 3550 – 3700 MHz and 6425 – - Planned for future satellites to free 6575 MHz through more than 20 Land Earth Stations up Ka-band for user terminals TT&C operated in standard C-band on most - Developmental payload on Alphasat Inmarsat satellites Inmarsat and Extended L-band Extended L-band will be available -
Wubbo Ockels Spaceup NL Chinese Raketten Van De Hoofdredacteur
Ruimteweer Wubbo Ockels SpaceUp NL Chinese raketten Van de hoofdredacteur: Een van de uitkomsten van de ledenenquête was dat er interesse is voor speciale uitgaven van Ruimtevaart rond een bepaald thema. De uitslag gaf aan dat 36% van de respondenten het leuk zou vinden als er een speciale uitgave kwam bij bijzondere gelegenheden en 44% was voor één speciale uitgave per jaar. Binnen de redactie hebben we uitgebreid besproken hoe we deze wens kunnen invullen met in achtneming van de keuze uit 2012 om dikkere Ruimtevaartnummers te maken met een lagere uitgavefrequentie. We zijn tot de conclusie gekomen dat dit het beste kan door middel van een Dossier: een aantal Bij de voorplaat artikelen rond een bepaald thema die in een reguliere uitgave opgenomen wordt. In dit nummer vindt u het eerste Dossier met Het noorderlicht is een spectaculair aspect van ruimteweer. De foto als bedroevende aanleiding het overlijden van Wubbo Ockels. is gemaakt door Ole Salomonsen in het Noorse Kattfjordeidet op We hebben een aantal mensen gevraagd om hun herinneringen 30 oktober 2013 toen de aarde geraakt werd door een Coronal Mass aan Wubbo op te schrijven. Ejection. De foto is genomineerd voor de astronomische foto van het jaar 2014. Op 2 september heeft de NVR ook een event in het Een andere uitslag van de enquête was dat onze leden interesse Omniversum over SolarMax & het poollicht georganiseerd. hebben in wat er gebeurt op ruimtevaartgebied buiten Europa en in het bijzonder China werd dan vaak genoemd. Oud- hoofdredacteur Henk Smid heeft daarom een tweedelig artikel geschreven wat een overzicht geeft van het verleden, heden en toekomst van de Chinese draagraketten. -
Classification of Geosynchronous Objects
esoc European Space Operations Centre Robert-Bosch-Strasse 5 D-64293 Darmstadt Germany T +49 (0)6151 900 www.esa.int CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS Produced with the DISCOS Database Prepared by T. Flohrer & S. Frey Reference GEN-DB-LOG-00195-OPS-GR Issue 18 Revision 0 Date of Issue 3 June 2016 Status ISSUED Document Type TN European Space Agency Agence spatiale europeenne´ Abstract This is a status report on geosynchronous objects as of 1 January 2016. Based on orbital data in ESA’s DISCOS database and on orbital data provided by KIAM the situation near the geostationary ring is analysed. From 1434 objects for which orbital data are available (of which 2 are outdated, i.e. the last available state dates back to 180 or more days before the reference date), 471 are actively controlled, 747 are drifting above, below or through GEO, 190 are in a libration orbit and 15 are in a highly inclined orbit. For 11 objects the status could not be determined. Furthermore, there are 50 uncontrolled objects without orbital data (of which 44 have not been cata- logued). Thus the total number of known objects in the geostationary region is 1484. In issue 18 the previously used definition of ”near the geostationary ring” has been slightly adapted. If you detect any error or if you have any comment or question please contact: Tim Flohrer, PhD European Space Agency European Space Operations Center Space Debris Office (OPS-GR) Robert-Bosch-Str. 5 64293 Darmstadt, Germany Tel.: +49-6151-903058 E-mail: tim.fl[email protected] Page 1 / 178 European Space Agency CLASSIFICATION OF GEOSYNCHRONOUS OBJECTS Agence spatiale europeenne´ Date 3 June 2016 Issue 18 Rev 0 Table of contents 1 Introduction 3 2 Sources 4 2.1 USSTRATCOM Two-Line Elements (TLEs) . -
GPS Standard Positioning Service Signal Specification
GLOBAL POSITIONING SYSTEM STANDARD POSITIONING SERVICE SIGNAL SPECIFICATION 2nd Edition June 2, 1995 June 2, 1995 GPS SPS Signal Specification TABLE OF CONTENTS SECTION 1.0 The GPS Standard Positioning Service.....................................1 1.1 Purpose ..............................................................................................................................1 1.2 Scope.................................................................................................................................. 1 1.3 Policy Definition of the Standard Positioning Service.........................................................2 1.4 Key Terms and Definitions.................................................................................................. 3 1.4.1 General Terms and Definitions ................................................................................. 3 1.4.2 Peformance Parameter Definitions........................................................................... 4 1.5 Global Positioning System Overview.................................................................................. 5 1.5.1 The GPS Space Segment.........................................................................................5 1.5.2 The GPS Control Segment .......................................................................................6 SECTION 2.0 Specification of SPS Ranging Signal Characteristics.............9 2.1 An Overview of SPS Ranging Signal Characteristics.........................................................9 -
Beidou Navigation Satellite System Signal in Space Interface Control Document
BeiDou Navigation Satellite System Signal In Space Interface Control Document Open Service Signal B1C (Version 1.0) China Satellite Navigation Office December, 2017 2017 China Satellite Navigation Office Table of Contents 1 Statement .......................................................................................................... 1 2 Scope ................................................................................................................ 1 3 BDS Overview ................................................................................................. 1 3.1 Space Constellation ................................................................................. 1 3.2 Coordinate System ................................................................................... 2 3.3 Time System ............................................................................................ 3 4 Signal Characteristics ...................................................................................... 3 4.1 Signal Structure ........................................................................................ 3 4.2 Signal Modulation ................................................................................... 4 4.2.1 Modulation ..................................................................................... 4 4.2.2 B1C Signal ..................................................................................... 5 4.3 Logic Levels ........................................................................................... -
(27.5-29.5Ghz) Band ITU-APT Foundation of India the 26-28 Ghz India 5G Spectrum Workshop
Inmarsat > CTO CTO > > Inmarsat Reg&Mac Satellite technology roadmap – 28GHz (27.5-29.5GHz) band ITU-APT Foundation of India The 26-28 GHz India 5G Spectrum Workshop Delhi, 27-28 September 2018 1 RegMac INMARSAT > CTO/ Inmarsat Inmarsat use of frequencies 1 Inmarsat use of Spectrum L band Ka band User terminals: 1626.5-1660.5 MHz ↑, 1525- Gateway ↑ : 27.5 – 30.0 GHz 1559 MHz↓ Gateway↓ : 17.7 – 20.2 GHz Legacy spectrum used by current Inmarsat User terminals ↑ : 29.0 – 30.0 GHz fleet User terminals↓ : 19.2 – 20.2 GHz Used by Inmarsat Global Express satellites Extended L-band: S band User terminals: 1668-1675 MHz ↑, 1518 Gateway↑ : 27.5 – 29.5 GHz MHz-1525 MHz ↓ Gateway↓ : 17.7 – 19.7 GHz User link ↑ 1980-2010MHz Q/V band User link↓ : 2170-2200MHz Used by Europasat C band 37.5-42.5 GHz ↓ 47.2-50.2 GHz + 50.4-51.4 GHz ↑ Gateways for L-band satellites operate in - Planned for future satellites to the bands 3550 – 3700 MHz and 6425 – 6575 MHz through more than 20 Land free up Ka-band for user terminals Earth Stations - Developmental payload on Alphasat INMARSAT > CTO/ RegMac 2 Satellite focus on 28 GHz band HTS, NGSO, etc. THE CONTINUED GROWTH OF SATELLITE INDUSTRY IN KA BAND 2020: >100 GSO • Satellite systems & 4-5 NGSO • A sustainable (civil) growth for both • Satellite systems GSO & NGSO • Using Ka-band (civil) (27.5-30.0 GHz) satellite systems • Using Ka-band (27.5-30.0 GHz) 2015: 63 GSO & Future 2 NGSO ESSENTIAL TO MAINTAIN FSS ACCESS TO KA BAND 5 Importance of 28 GHz band for satellite • Key uplink band for GEO and non-GEO satellite systems, including HTS systems • 28 GHz band is defined as 27.5-29.5 GHz, globally allocated to the FSS (Fixed Satellite Service). -
GNSS-Based Radio Tomographic Studies of the Ionosphere at Different Latitudes
GNSS-Based Radio Tomographic Studies of the Ionosphere at Different Latitudes Vyacheslav E. Kunitsyn1,2, Elena S. Andreeva1,2, Ivan A. Nesterov1,2, Yulia S. Tumanova1,2 and Yuri N. Fedyunin3 1Lomonosov Moscow State University, Moscow, Russia 2Instutite of Solar-Terrestrial Physics, Irkutsk, Russia 3Merchant Marine Academy, New York, USA ABSTRACT We present the results of ionospheric imaging by the radio tomographic (RT) methods based on the Navigation Satellite Systems (GNSS). GNSS include the first-generation low orbiting (LO) systems (Tsikada, Transit, etc.) and second-generation high orbiting (HO) systems (GPS and GLONASS, which have been put in operation, and Galileo, BeiDou, and QZSS systems, which are currently under development in Europe, China, and Japan). The GNSS constellations and the networks of ground receivers are suitable for probing the ionosphere along different rays and processing the obtained data by tomographic inversion procedures. The results discussed in this work are obtained by the methods of low orbiting and high orbiting radio tomography (LORT and HORT, respectively). We present the examples of tomographic images of the subequatorial, midlatitude, subauroral, and auroral ionosphere in different regions of the world. The RT images of the Arctic ionosphere demonstrate different structures (characteristic circumpolar ring structures, ionization patches, tongues of ionization (TOIs), etc.) The GNSS RT methods are suitable for imaging the ionospheric disturbances caused by the tsunami wave propagation. We analyze the ionospheric disturbances after the strongest Tohoku earthquake in Japan (March 11, 2011). The RT reconstructions are compared to the measurements by the ionosondes and Global Ionospheric Maps (GIM). 1. INTRODUCTION The existing GNSS constellations and the corresponding networks of ground receivers make it possible to probe the ionosphere along different directions and to apply the RT methods to reconstruct the spatial distributions of electron concentration in the ionosphere.